Figure 1: Results of four different single locus DNA electrophoresis gels from the Jones’ family. Four different locations on each person’s genome were analyzed for the number of VNTRs (Variable Number Tandem Repeats) found in relation to a standard sample of VNTRs of known lengths. Strands of similar length are pulled “down” similar distances through a gel by an electrical current resulting in “bands” that can be stained and read.
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